The construction of Vista Tower is well underway, but nowhere near its final height of 1,198 feet. When will be completed in 2020, it will become the third-tallest tower in Chicago. A collaboration between Studio Gang, bKL Architecture and Magellan Development, it is primarily comprised of three undulating green glass towers sited in a stair step arrangement, each tower successively taller from east to west. Although it's still early, the elevating wavy design of the towers is evident and striking.

I took some photos of the site last summer when only the foundation was in place. I will continue periodically documenting the building as it progresses. In a few years, I think it will be valuable to have a solid set of architectural photographs tracking the progress of what will undoubtedly be an iconic piece of the Chicago skyline.